Vulnerabilities > CVE-2015-2446 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Microsoft Edge and Internet Explorer

047910
CVSS 9.3 - CRITICAL
Attack vector
NETWORK
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
COMPLETE
Integrity impact
COMPLETE
Availability impact
COMPLETE
network
microsoft
CWE-119
critical
nessus

Summary

Microsoft Internet Explorer 11 and Edge allow remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted web site, aka "Memory Corruption Vulnerability," a different vulnerability than CVE-2015-2447.

Vulnerable Configurations

Part Description Count
Application
Microsoft
2

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Buffer Overflow via Environment Variables
    This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
  • Overflow Buffers
    Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
  • Client-side Injection-induced Buffer Overflow
    This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
  • Filter Failure through Buffer Overflow
    In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
  • MIME Conversion
    An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.

Msbulletin

bulletin_idMS15-079
bulletin_url
date2015-08-11T00:00:00
impactRemote Code Execution
knowledgebase_id3082442
knowledgebase_url
severityCritical
titleCumulative Security Update for Internet Explorer

Nessus

  • NASL familyWindows : Microsoft Bulletins
    NASL idSMB_NT_MS15-091.NASL
    descriptionThe version of Microsoft Edge installed on the remote host is missing Cumulative Security Update 3081436. It is, therefore, affected by multiple vulnerabilities : - Multiple memory corruption issues exist due to improper access to objects in memory resulting from insufficient validation of user-supplied input. A remote attacker, using a specially crafted website, can exploit these issues to execute arbitrary code in the context of the current user. (CVE-2015-2441, CVE-2015-2442, CVE-2015-2446) - A security feature bypass vulnerability exists due to a failure to use Address Space Layout Randomization (ASLR). An attacker can exploit this to predict memory offsets in a call stack. (CVE-2015-2449)
    last seen2020-06-01
    modified2020-06-02
    plugin id85324
    published2015-08-11
    reporterThis script is Copyright (C) 2015-2018 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/85324
    titleMS15-091: Cumulative Security Update for Microsoft Edge (3084525)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(85324);
      script_version("1.11");
      script_cvs_date("Date: 2018/11/15 20:50:31");
    
      script_cve_id(
        "CVE-2015-2441",
        "CVE-2015-2442",
        "CVE-2015-2446",
        "CVE-2015-2449"
      );
      script_bugtraq_id(
        76193,
        76196,
        76197,
        76199
      );
      script_xref(name:"MSFT", value:"MS15-091");
      script_xref(name:"MSKB", value:"3081436");
    
      script_name(english:"MS15-091: Cumulative Security Update for Microsoft Edge (3084525)");
      script_summary(english:"Checks the file version of edgehtml.dll.");
    
      script_set_attribute(attribute:"synopsis", value:
    "The remote host has a web browser installed that is affected by
    multiple vulnerabilities.");
      script_set_attribute(attribute:"description", value:
    "The version of Microsoft Edge installed on the remote host is missing
    Cumulative Security Update 3081436. It is, therefore, affected by
    multiple vulnerabilities :
    
      - Multiple memory corruption issues exist due to improper
        access to objects in memory resulting from insufficient
        validation of user-supplied input. A remote attacker,
        using a specially crafted website, can exploit these
        issues to execute arbitrary code in the context of the
        current user. (CVE-2015-2441, CVE-2015-2442,
        CVE-2015-2446)
    
      - A security feature bypass vulnerability exists due to
        a failure to use Address Space Layout Randomization
        (ASLR). An attacker can exploit this to predict memory
        offsets in a call stack. (CVE-2015-2449)");
      script_set_attribute(attribute:"see_also", value:"https://docs.microsoft.com/en-us/security-updates/SecurityBulletins/2015/ms15-091");
      script_set_attribute(attribute:"solution", value:
    "Microsoft has released a set of patches for Windows 10.");
      script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
      script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
      script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
      script_set_attribute(attribute:"exploit_available", value:"false");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2015/08/11");
      script_set_attribute(attribute:"patch_publication_date", value:"2015/08/11");
      script_set_attribute(attribute:"plugin_publication_date", value:"2015/08/11");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:microsoft:windows");
      script_set_attribute(attribute:"cpe", value:"cpe:/a:microsoft:edge");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_family(english:"Windows : Microsoft Bulletins");
    
      script_copyright(english:"This script is Copyright (C) 2015-2018 Tenable Network Security, Inc.");
    
      script_dependencies("smb_hotfixes.nasl", "ms_bulletin_checks_possible.nasl");
      script_require_keys("SMB/MS_Bulletin_Checks/Possible");
      script_require_ports(139, 445, "Host/patch_management_checks");
    
      exit(0);
    }
    
    include("audit.inc");
    include("smb_func.inc");
    include("smb_hotfixes.inc");
    include("smb_hotfixes_fcheck.inc");
    include("smb_reg_query.inc");
    include("misc_func.inc");
    
    get_kb_item_or_exit('SMB/MS_Bulletin_Checks/Possible');
    
    bulletin = 'MS15-091';
    kb = '3081436'; # Cumulative update for Windows 10: August 11, 2015
    
    kbs = make_list(kb);
    if (get_kb_item('Host/patch_management_checks')) hotfix_check_3rd_party(bulletin:bulletin, kbs:kbs, severity:SECURITY_HOLE);
    
    get_kb_item_or_exit("SMB/Registry/Enumerated");
    get_kb_item_or_exit('SMB/WindowsVersion', exit_code:1);
    
    # Server core is not affected
    if (hotfix_check_server_core() == 1) audit(AUDIT_WIN_SERVER_CORE);
    
    if (hotfix_check_sp_range(win10:'0') <= 0) audit(AUDIT_OS_SP_NOT_VULN);
    
    share = hotfix_get_systemdrive(exit_on_fail:TRUE, as_share:TRUE);
    if (!is_accessible_share(share:share)) audit(AUDIT_SHARE_FAIL, share);
    
    if (
      # Windows 10
      hotfix_is_vulnerable(os:"10", sp:0, file:"edgehtml.dll", version:"11.0.10240.16428", dir:"\system32", bulletin:bulletin, kb:kb)
    )
    {
      set_kb_item(name:'SMB/Missing/'+bulletin, value:TRUE);
      hotfix_security_hole();
      hotfix_check_fversion_end();
      exit(0);
    }
    else
    {
      hotfix_check_fversion_end();
      audit(AUDIT_HOST_NOT, 'affected');
    }
    
  • NASL familyWindows : Microsoft Bulletins
    NASL idSMB_NT_MS15-079.NASL
    descriptionThe version of Internet Explorer installed on the remote host is missing Cumulative Security Update 3082442. It is, therefore, affected by multiple vulnerabilities, the majority of which are remote code execution vulnerabilities. An attacker can exploit these vulnerabilities by convincing a user to visit a specially crafted website. Note that the majority of the vulnerabilities addressed by Cumulative Security Update 3082442 are mitigated by the Enhanced Security Configuration (ESC) mode which is enabled by default on Windows Server 2003, 2008, 2008 R2, 2012, and 2012 R2.
    last seen2020-06-01
    modified2020-06-02
    plugin id85333
    published2015-08-11
    reporterThis script is Copyright (C) 2015-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/85333
    titleMS15-079: Cumulative Security Update for Internet Explorer (3082442)